Delivery trip mechanism.



v A. J. SLADE, JR. DELLVIBRY TRIP MECHANISM. APPLICATION FILED M16121, 191s.

Patented Aug. 25,- 1914.

3 SHEETS-$HBET 1,

A. J. SLADE, (In. DELIVERY TRIP MECHANISM.

APPLICATION FILED AUG. 21, 1912. 1 JL@8,802w Patented Aug. 25, 191% s SHBETSSHEET 2.

A.J.SLADB,JR. DELIVERY TRIP MECHANISM.

APPLIOATION FILED AUG. 21, 1913.

Patented Aug. 25, 1914.

3 SHEETSSHEET 3.

STATES PA ALBERT J. SLADE, 73., 015 PEARL RIVER, NEW YUxsK, ASSIGNOE T0 DEXTER JFQLDER COMPANY, OF PEARL RIVER, NEW YORK. A CQOTION 0h NEW YORK.

DELIVERY TIHP MECHANISM.

Specification of Letters Eatent.

Patented Aug. 25, ieia.

Application nee August 21, 1913. Serial No. 385,928;

as to clog the action of the machine. Formerly, considerable waste of paper-and not, infrequent breakageot machinery, was 00- casioned by defects of this character, to overcome which, constituted the chief object of Patent No. 675,129, which was granted. to Talbot C. Dexter on May 28th, 1901. "According to the aforesaid patent; however,

the 'throwout mechanism became efiective only at predetermined times sothatin the intervals between such times, the speed of the press or' other machine was continued unabated until the ends of suchintervals. With certain kinds of machines which operate on paper and especially in connection with printing presses, 'it is objectionable to delay the sto page of the machine until the recurrence 0 a predetermined time for the reason that serious breakage may occur in" the meanwhile. Thus in printing presses, it has happened not infrequently that the plate on the plate cylinder, became broken by the pressure due to a wad of paper formed by a crumpled sheet between the plate and impression cylinders.

The primary objectfot the present inventime. therefore, is to provide suitable and efieient means for making I mechanism operate substantially iiistanta neously whenever a sheet of paper happens to become crumpled, thus avoiding broken platens and other injuries to the machine. Toward the attainment of this object, my invention contemplatesthe provisionof suitable means adapted to be actuated by a crumpled or deranged sheet, which .practically instantaneously connects the throwout mechanism with a continuously driven art,

the result being that a retardation o' the moving parts may be initiated at any instant whatever the positions of said moving parts.

maynbe. I v

othpr object of this invention is to pm the throwoutvide an improved deviceof this-character which will embody simple mechanical 'details adapting the device toact positively and instantaneously.

. Collateralaand incidental advantages of the invention will-appear in'the'specification, reference being had to the accompanying drawings in which the invention is ex- (amplified in its adaptability to a rotary printing press. v

In the drawings, Figure 1 is' atop plan view of one embodiment of my invention in its relations to a printing press, arts being broken away Fig. 2 is a side elevation of the same, showing the parts in' normal inactive position, and Fig. 3 is'a similar side elevation showing the parts inshifted positime due to the paper becoming crumpled for massed;

In the following description and claims,

the use of the term crumpled will be understood to indicate any crumpled or buckled condition of the paperwhich' tends to make it become sna sage over the eed board, or through the maged 'or lodged during its paschine which is operating" upon it, such for example as the printing press, of which parts are shown on the drawings. v

Accordingto the present embodiment of my invention, the ends of a bridge or crossbar ,1, are"secured to the respective side frames 2 and '3 of the printing press, said bridge or' cross-bar being provided with a stiifenin .rib l. Projecting from this bridge or crossar are bracket arms 5 Within the endsot which, is journale'd a shaft 6, which i's cepahle of being rocked to and fro under the impulse imparted by one or more fingers which depend therefrom. lln the preferred embodiment, each of said finrsconaprises a shanlr portion 7 which is keyed to the shaft 6, and a forwardly projecting portion 8 which is suitably formed to correspond to the machine part arranged adjacent thereto and over which the pa er passes,'such part in the present embodiment being the impression cylinder 9 or a printing press. Keyed to one'end of the shaft 6 is a lever arm 18 from the lower end of which projects a pin 11, said pin being arrangedto recipros' catein a slot 12 in the lower endoif econ-s necting rod 13. The. pin 11 and'slot 12 constitute a lost motion goint in the mechanical train which connects the span actuated fingers and a. pawl .14, to'w ich the upper end of connecting rod 13 is pivotall connected at 15. The pawl 14 swings a out a stud 16 carried by t e depending arm 17 of a bell crank mounted on a stub shaft 18, the

upper arm 19 of the bell crank being pivotally connected at 20 with one end of a connecting. rod 21. A spring 22 imparts a normal tendency to retain the pawl 14 in raised position with respect to a ratchet wheel 23 which is keyed to a positively driven shaft 24, which is-journaled in bear-' ing brackets 25. In order to make the device operative in slowing down thepress at any is pivoted on a stud 81. The lower arm 32 is pivotally connected at 33 to the forward end of a connecting rod 3 1 which operates a stop-mechanism of any suitable construc-' tion or throws a switch.

Theoperation of this embodiment of my invention is as follows. Under normal runnin conditions as the paper is being fed to tie printing press, the space between the finger8 and cylinder 9 is suflicient to permit a sheet to pass if properly presented thereto.

When, however, a sheet. is interfered with in, its passage, it naturally crumples and forces the finger 8 outwardly from the cylinder. By this movement, a clockwise oscillation is imparted to the lever arm 10 which is transniittedto the pawl 14 by means of the connecting rod 13.

arms 17 and 19, is driven in a clockwise direction until the parts occupy the relative positionsshown in Fig. 3 by an inspection As soon as the pawll l' has been drawn into engagement with the ratchet wheel 23, the bell crank lever having of which figure, it will be seen that pawl 14 has been revolved on its""pivot at the same time that the connecting rod 34 has been thrown to operate the stop mechanism. After said stop mechanism has been operated in this manner, the parts are retained in the positions shown in- Fig. 3. According to this fingure, the connecting rodperforms the function of a strut and retains the lever arm in depressed position with the finger 8 in raised position. The parts may be returned 'to normal position by returning the pawl 14 'to the position shown in Fig. 1.

' "What. I claim is:

1.- In a machine of the character described, a power transmitting member provided with teeth, a member for operating a stop mechanism for said machine, a pawl pivotally connected to said operating member, a tripping device adapted to permit the passage of'an :uncrumpled sheet and to be displaced by a crumpled sheet, and yieldable means adapted to normally retain said pawl away from'the toothed power-transmitting member, said tripping device being adapted to throw the pawl into engagementwith said toothed member when displaced by a crum led sheet.

2. he combination with a machine, en bodying a surface 'over which sheets of pa er arepassed, a 'power driven shaft, a rate et carried by said shaft, a lever for operating a stop mechanism, a pawl carried by said lever, said pawl being normally retained out of engagement with said ratchet, a finger spaced from said surface to permit the passage of paper, said finger being dis placeable under the action of crumpled paper, and means connecting said finger to said pawl, said means; being adapted to throw the pawl intoengagement with the ratchet tofleifect the-operation of said stop mechanism.

, ALBERT J. SLADE, JR. Witnesses E. R. Lyman, R. T. BURRows. 

